These transmissions are assembled in ATI’s SFI case with an SFI Mopar specific bellhousing
and include a roller bearing tailhousing, deep aluminum pan, LOKAR firewall mount dipstick
and 10 quarts of ATI’s 30W Super F synthetic fluid. The appropriate flexplate, crank adapter
and required bolts are also included so a standard GM converter with a small bolt circle
drops right in. Standard gear ratio is the OEM 2.48/1.48. Other options available - see
below. Core charge and shipping crate are included in the price of these transmissions.

As horsepower gets easier and cheaper to make and racers set
the bar higher and higher, a need is created for numerically
lower gear sets with higher strength requirements. Today’s
high HP racer needs a durable transmission with a less aggressive
starting line ratio. Most racers achieve this by converting
the Turbo 400 transmission to a 2-speed unit allowing them the
ability to leave off the transbrake in 2nd gear. ATI now has
an answer for this market and offers three variations of a 2-speed
Turbo 400!

The new cast aluminum T400 SuperCase
is the result of over 2 years of development. Designed
in-house at ATI, and cast here in the USA, and machined
at ATI on 4-Axis Horizontal CNC machines, the T400 SuperCase
features improved fluid pathways to assure better performance
and will accept any of ATI’s SFI bellhousings, along
with the Reid bell (with slight modifications) and Browell
cans.

TH400 Parking Pawl Pin
ATI's Parking Pawl Pin for T400 transmissions. With this
new, hard to find replacement pin and clip, there will
be no more headaches from digging through old cases for
rusted up used pins! The new hardened steel pin comes
standard on ATI’s T400 Supercase Transmission builds
and is engineered to original GM specs.

Park Pawl Actuator Rod
ATI's new T400 Park Pawl Actuator Rod is an all new piece that replaces the OEM unit.

Description

Part
Number

Price

TH400 - PARK PAWL ACTUATOR ROD

402113

$16.95

Park Pawl Guide Plate
ATI's new T400 Park Pawl Guide Plate is an all new piece that replaces the OEM unit.

Description

Part
Number

Price

TH400 - PARK PAWL GUIDE PLATE

402114

$9.95

Modulator Plug Clamp
ATI's new T400 Modulator Plug Clamp is an all new piece that replaces the OEM clamp on T400 valve bodies.

Description

Part
Number

Price

T400 MODULATOR PLUG CLAMP

970211

$5.25

TH400 Center Support
The upgraded center support for the Turbo 400 features
a bronze bushing that virtually eliminates premature sprag
failure. It is highly recommended for competition applications.Also available with Teflon coating for aluminum drums